• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
PS202010EN/ Old G210-90-1
PS202010EN/ Old G210-90-1

... winding temperature rise rating. The above winding temperature rise shall not exceed 55°C when loaded at base kVA rating. The transformer shall provide an additional 22% continuous operating capacity at the 75°C rating. This transformer is identified as a PEAK transformer. 4 of 13 • October 2015 • S ...
480V to 277V Step-Down Autotransformers
480V to 277V Step-Down Autotransformers

... Allows retrofits of standard metal halide 480V systems to high performance fluorescent or eHID systems operating providing over 50% energy savings. High efficiency/low loss transformer design - 93% ...
Chapter 19 Rotary Transformer Design
Chapter 19 Rotary Transformer Design

... transformer is one problem, and (2) the required spacing between primary and secondary that leads to large leakage inductance is the other. These problems, along with a square wave drive, are what leads to a high loss, snubber circuit, and beccme a source of Electromagnetic Interference (EMI) that i ...
Amphenol Alden
Amphenol Alden

... To order the standard products listed in this catalog please find your local Amphenol Alden sales rep at www.AmphenolAlden.com, or contact our customer service and marketing team directly at (508) 427-7000. When placing an order, please reference the connector and length of wire you require. For exa ...
Voltage and vibration fluctuations in power transformers
Voltage and vibration fluctuations in power transformers

... In this test, inducted voltages in the centre belt coil and the HV winding were measured under five load cases controlled by switching on different heater groups. The five loading statuses from the open circuit to a 13.24 Ω resistive load are defined as L1 to L5 load case. Figure 5 shows the normali ...
PQI Guide Spec 26 2200
PQI Guide Spec 26 2200

... The term "withstand" means "the unit will remain in place without separation of any parts from the device when subjected to the seismic forces specified and the unit will be fully operational after the seismic event." ...
M V L I
M V L I

... Manual Revision History .............................................................. 19 ...
Electric Service Handbook
Electric Service Handbook

... made if the characteristics of the customer load or billing rate require the Company to utilize multiple meters. Multiple meters will not be used for the customer’s benefit. On installations comprising more than six meters, a sealable main disconnect or main breaker, of a type acceptable to the Comp ...
Lecture 4: Interconnect RC
Lecture 4: Interconnect RC

... 6.1 IR Drops Wires such as power busses which carry large DC currents droop in voltage due to the resistance of the wire multiplied by the current carried on the wire. This is bad because, for instance, it reduces the value of VDD seen at the center of a chip when the power supply is driven by pads ...
Coil on Plug: The Wired Differences
Coil on Plug: The Wired Differences

... PCM monitors dwell and burn time relationship Insufficient Ionization faults ...
Factors affecting energy deposition and expansion in
Factors affecting energy deposition and expansion in

... cathode. Our experiments had a similarly varying radial electric field and looked for asymmetries in core expansion due to this. In addition, the importance of the direction of the radial electric field was studied. Increasing the number of wires in the array has three main effects: 共1兲 it makes the ...
magnetizing current effect minimization in current transformers
magnetizing current effect minimization in current transformers

... Measuring power in the system has always been a difficulty to carry out. To achieve credible of power measurement results a precise current measurement has to be performed. Current measurement realized using current transformers requires actual current transformation. The measurements carried out in ...
FN33984987
FN33984987

... between consumer and supplies. With increasing demand of electrical energy, number of distribution transformer to be installed is increasing .Efficiency of transformer is usually 97% to 99% as we all know but because of increase in total number of transformer in power system network ,losses has incr ...
DOE Fundamentals Handbook Electrical Science Volume 4 of 4
DOE Fundamentals Handbook Electrical Science Volume 4 of 4

... At Point T2, the current sine waves have rotated through 60 electrical degrees. At this point, the current in phase A has increased to its maximum negative value. The current in phase B has reversed direction and is at half of the maximum positive value. Likewise, the current in phase C has decrease ...
Power and distribution transformers
Power and distribution transformers

... Applications • Utilities: transmission and distribution network, automatic voltage regulator. • Power generation: hydro, nuclear, thermal, photovoltaic. ...
View Uploaded Details
View Uploaded Details

... supported on the poles or towers in such a way that currents from conductors do not flow to earth through supports. This is achieved by securing line conductors to supports with the help of insulators. •Insulators provide necessary insulation between line conductors and supports and thus prevent any ...
General Study on Piezoelectric Transformer
General Study on Piezoelectric Transformer

... study and development of PZT are very lowly. Many researchers apply themselves to developing piezo materials, step-up ratio, output power, efficiency to thermal stress and dimension of PZT [1-3]. PZT has been focus on because of the new material applied in piezoelectric transformer. Piezoelectric tr ...
Wind Curriculum Sample
Wind Curriculum Sample

... Locating a wind turbine closer to the electricity’s point of use will decrease wire costs and lower the voltage drop (the greater the wire length, the greater the resistance). Manufacturers specify the wire size and material for a range of distances between the wind turbine and the batteries that wi ...
OSFS, OSFD Active Filters
OSFS, OSFD Active Filters

... that generate harmonics. These can cause electronically controlled devices to fail, break down or exhibit “inexplicable malfunction”. • Sporadic upsets and defects in electronic control systems and devices • Sporadic tripping of circuit breakers for no apparent reason • Cables - especially transf ...
Fortune Oregon Data Center Increases Reliability with a High
Fortune Oregon Data Center Increases Reliability with a High

... Reduces the arc blast or flash hazard to personnel who may have accidentally caused or who happen to be in close proximity to the ground fault. 5. Reduces the momentary line-voltage dip occasioned by the occurrence and clearing of a ground fault. 6. To secure control of transient overvoltages while ...
HPS North American Capabilities Brochure This brochure outlines
HPS North American Capabilities Brochure This brochure outlines

... Three phase, 3 coil, standard designs, using economical open core and coil construction (two coil units also available) 220°C insulation with 150°C temperature rise Heavy solid copper tabs with holes provide reliable termination Copper construction UL Listed and CSA Certified ...
PARALLEL UNIT-CONNECTED GENERATOR MODEL FOR THIRD
PARALLEL UNIT-CONNECTED GENERATOR MODEL FOR THIRD

... 4.1 Validation of the Non-Fault Model In order to verify that the circuit models presented to sudy the phenomenon of interest are built correctly using SIMULINK, validation of the non-fault model is done by a comparison of results obtained from theoretical analysis and computer simulation of the mod ...
Design of Lightning Arresters for Electrical Power Systems Protection
Design of Lightning Arresters for Electrical Power Systems Protection

... important because it is known that lightning does strike the same structure over and again. This can be a very serious problem for power lines, typically, the highest structures located in high incidence light1. ...
the low-voltage lighting application note (PDF, 76
the low-voltage lighting application note (PDF, 76

... personnel concerning low-voltage dimming applications. Lutron manufactures low-voltage dimmers for lowvoltage fixtures that use magnetic transformers. To control electronic (solid-state) transformer-supplied low-voltage lighting, Lutron developed special dimming circuitry after an extensive engineer ...
Current transformer selection guide
Current transformer selection guide

... The calibrating CTs are calculated to re-establish currents and phases to match the coupling to the power transformer. In the somewhat infrequent case in which it is not possible to use a calibration CT (as the accuracy power is too high), the rated current depends on the transformer coupling. Deter ...
< 1 ... 12 13 14 15 16 17 18 19 20 ... 79 >

Single-wire earth return



Single wire earth return (SWER) or single wire ground return is a single-wire transmission line which supplies single-phase electrical power from an electrical grid to remote areas at low cost. Its distinguishing feature is that the earth (or sometimes a body of water) is used as the return path for the current, to avoid the need for a second wire (or neutral wire) to act as a return path. Single-wire earth return is principally used for rural electrification, but also finds use for larger isolated loads such as water pumps. It is also used for high-voltage DC over submarine power cables. Electric single-phase railway traction, such as light rail uses a very similar system. It uses resistors to earth to reduce hazards from rail voltages, but the primary return currents are through the rails.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report